US6717761B2 - Recording/reproducing apparatus - Google Patents
Recording/reproducing apparatus Download PDFInfo
- Publication number
- US6717761B2 US6717761B2 US09/816,404 US81640401A US6717761B2 US 6717761 B2 US6717761 B2 US 6717761B2 US 81640401 A US81640401 A US 81640401A US 6717761 B2 US6717761 B2 US 6717761B2
- Authority
- US
- United States
- Prior art keywords
- data
- heads
- control
- rotary
- recording
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
- G11B15/14—Masking or switching periodically, e.g. of rotating heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
- G11B15/125—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams conditioned by the operating function of the apparatus
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/49—Fixed mounting or arrangements, e.g. one head per track
- G11B5/4969—Details for track selection or addressing
- G11B5/4984—Structure of specially adapted switching heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
- G11B5/531—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
- G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
- G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
- G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
- G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
- G11B2005/0018—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers by current biasing control or regulation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
- G11B33/122—Arrangements for providing electrical connections, e.g. connectors, cables, switches
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/799,622 US7023635B2 (en) | 2000-04-26 | 2004-03-15 | Recording/reproducing apparatus |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-131518 | 2000-04-26 | ||
JP2000131518A JP2001312801A (en) | 2000-04-26 | 2000-04-26 | Rotary magnetic head type device |
JP2001-009651 | 2001-01-18 | ||
JP2001009651A JP2002216302A (en) | 2001-01-18 | 2001-01-18 | Recoding and reproducing device, and rotating head assembly |
JP01-009651 | 2001-01-18 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/799,622 Continuation US7023635B2 (en) | 2000-04-26 | 2004-03-15 | Recording/reproducing apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010048565A1 US20010048565A1 (en) | 2001-12-06 |
US6717761B2 true US6717761B2 (en) | 2004-04-06 |
Family
ID=26591294
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/816,404 Expired - Fee Related US6717761B2 (en) | 2000-04-26 | 2001-03-26 | Recording/reproducing apparatus |
US10/799,622 Expired - Fee Related US7023635B2 (en) | 2000-04-26 | 2004-03-15 | Recording/reproducing apparatus |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/799,622 Expired - Fee Related US7023635B2 (en) | 2000-04-26 | 2004-03-15 | Recording/reproducing apparatus |
Country Status (1)
Country | Link |
---|---|
US (2) | US6717761B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030197966A1 (en) * | 2002-04-23 | 2003-10-23 | Hitachi, Ltd. | Digital information reproducing apparatus using rotary magnetic heads |
US20050041318A1 (en) * | 2001-10-09 | 2005-02-24 | Michael Blatchley | Drum electronics control interface and protocol for recording/reproducing apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005276359A (en) * | 2004-03-25 | 2005-10-06 | Sony Corp | Magnetic head device, rotary head device, magnetic tape unit, magnetic disk unit, magnetic recording method |
Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4594621A (en) * | 1983-09-14 | 1986-06-10 | Hitachi, Ltd. | Rotary head type digital information signal recording and reproducing apparatus and tracking control method therein |
US4628373A (en) * | 1983-06-10 | 1986-12-09 | Hitachi, Ltd. | Rotating head type magnetic record/reproduce apparatus |
US4742414A (en) * | 1984-10-31 | 1988-05-03 | Hitachi, Ltd. | Rotary magnetic head device for magnetic recording/reproduction apparatus |
US4908722A (en) * | 1987-07-03 | 1990-03-13 | Kabushiki Kaisha Toshiba | Digital magnetic recording/reproduction apparatus and method |
US5065259A (en) * | 1988-04-07 | 1991-11-12 | Sony Corporation | Magnetic recording and/or reproducing apparatus |
US5233478A (en) * | 1990-01-09 | 1993-08-03 | Sony Corporation | Apparatus for recording a digital signal composed of different types of data |
US5260843A (en) * | 1990-02-06 | 1993-11-09 | Hitachi, Ltd. | Magnetic recording and reproducing apparatus with individual correction of amplitude variations of recording currents supplied to plural rotary magnetic heads |
JPH05325110A (en) | 1992-05-26 | 1993-12-10 | Hitachi Ltd | Read amplifier circuit for magnetoresistive effect type head |
US5276565A (en) * | 1989-05-23 | 1994-01-04 | Kabushiki Kaisha Toshiba | Rotary type magnetic recording and reproduction apparatus |
US5369534A (en) * | 1992-10-31 | 1994-11-29 | Samsung Electronics Co., Ltd. | Recording and reproducing apparatus including recording/reproducing head switchably connected to common rotary transformer |
JPH06338001A (en) | 1993-05-28 | 1994-12-06 | Toshiba Corp | Magnetic recording and reproducing device |
US5412518A (en) | 1993-12-16 | 1995-05-02 | International Business Machines Corporation | Individual MR transducer head/disk/channel adaptive bias current system |
US5517369A (en) * | 1992-10-19 | 1996-05-14 | Sharp Kabushiki Kaisha | Multi-track magnetic signal reproducing apparatus |
US5739986A (en) * | 1995-12-14 | 1998-04-14 | U.S. Philips Corporation | Magnetic tape recording/reproducing device comprising a head-drum unit using capacitive and inductive couplings to transfer signals from and to the write and read heads |
JPH10105909A (en) | 1996-09-30 | 1998-04-24 | Fujitsu Ltd | Device and method for controling bias current for magneto-resistance effect type magnetic head, and magnetic storage device |
JPH10177924A (en) | 1996-12-17 | 1998-06-30 | Sony Corp | Rotary magnetic head device |
US6201654B1 (en) * | 1994-08-26 | 2001-03-13 | Hitachi, Ltd. | Method and apparatus for recording digital signal |
US6243240B1 (en) * | 1996-12-17 | 2001-06-05 | Sony Corporation | Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device |
US6349012B1 (en) * | 1998-02-03 | 2002-02-19 | Hitachi, Ltd. | Magnetic recording and/or reproducing apparatus |
US6356403B2 (en) * | 1997-04-25 | 2002-03-12 | Sony Corporation | Rotary magnetic head apparatus having reproduction signal wiring, power-supply wiring and recording signal wiring sections in a rotor and a stator arranged in a predetermined manner |
US6452736B1 (en) * | 1994-05-26 | 2002-09-17 | Hitachi, Ltd. | Magnetic recording and reproducing apparatus and a read/write amplifier having a signal transmission system with high speed of data write signal |
US6476993B1 (en) * | 1999-06-16 | 2002-11-05 | Sony Corporation | Signal processing apparatus and method wherein control signals and power signals are superimposed |
-
2001
- 2001-03-26 US US09/816,404 patent/US6717761B2/en not_active Expired - Fee Related
-
2004
- 2004-03-15 US US10/799,622 patent/US7023635B2/en not_active Expired - Fee Related
Patent Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4628373A (en) * | 1983-06-10 | 1986-12-09 | Hitachi, Ltd. | Rotating head type magnetic record/reproduce apparatus |
US4594621A (en) * | 1983-09-14 | 1986-06-10 | Hitachi, Ltd. | Rotary head type digital information signal recording and reproducing apparatus and tracking control method therein |
US4742414A (en) * | 1984-10-31 | 1988-05-03 | Hitachi, Ltd. | Rotary magnetic head device for magnetic recording/reproduction apparatus |
US4908722A (en) * | 1987-07-03 | 1990-03-13 | Kabushiki Kaisha Toshiba | Digital magnetic recording/reproduction apparatus and method |
US5065259A (en) * | 1988-04-07 | 1991-11-12 | Sony Corporation | Magnetic recording and/or reproducing apparatus |
US5276565A (en) * | 1989-05-23 | 1994-01-04 | Kabushiki Kaisha Toshiba | Rotary type magnetic recording and reproduction apparatus |
US5233478A (en) * | 1990-01-09 | 1993-08-03 | Sony Corporation | Apparatus for recording a digital signal composed of different types of data |
US5260843A (en) * | 1990-02-06 | 1993-11-09 | Hitachi, Ltd. | Magnetic recording and reproducing apparatus with individual correction of amplitude variations of recording currents supplied to plural rotary magnetic heads |
JPH05325110A (en) | 1992-05-26 | 1993-12-10 | Hitachi Ltd | Read amplifier circuit for magnetoresistive effect type head |
US5517369A (en) * | 1992-10-19 | 1996-05-14 | Sharp Kabushiki Kaisha | Multi-track magnetic signal reproducing apparatus |
US5369534A (en) * | 1992-10-31 | 1994-11-29 | Samsung Electronics Co., Ltd. | Recording and reproducing apparatus including recording/reproducing head switchably connected to common rotary transformer |
JPH06338001A (en) | 1993-05-28 | 1994-12-06 | Toshiba Corp | Magnetic recording and reproducing device |
JPH07201005A (en) | 1993-12-16 | 1995-08-04 | Internatl Business Mach Corp <Ibm> | Method for controlling bias current of reading head and magnetic-disk-data storing device |
US5412518A (en) | 1993-12-16 | 1995-05-02 | International Business Machines Corporation | Individual MR transducer head/disk/channel adaptive bias current system |
US6452736B1 (en) * | 1994-05-26 | 2002-09-17 | Hitachi, Ltd. | Magnetic recording and reproducing apparatus and a read/write amplifier having a signal transmission system with high speed of data write signal |
US6201654B1 (en) * | 1994-08-26 | 2001-03-13 | Hitachi, Ltd. | Method and apparatus for recording digital signal |
US5739986A (en) * | 1995-12-14 | 1998-04-14 | U.S. Philips Corporation | Magnetic tape recording/reproducing device comprising a head-drum unit using capacitive and inductive couplings to transfer signals from and to the write and read heads |
JPH10105909A (en) | 1996-09-30 | 1998-04-24 | Fujitsu Ltd | Device and method for controling bias current for magneto-resistance effect type magnetic head, and magnetic storage device |
US6067200A (en) | 1996-09-30 | 2000-05-23 | Fujitsu Limited | Method and apparatus for adjusting a bias current of a magneto-resistive effect type magnetic head and magnetic recording apparatus |
JPH10177924A (en) | 1996-12-17 | 1998-06-30 | Sony Corp | Rotary magnetic head device |
US6243240B1 (en) * | 1996-12-17 | 2001-06-05 | Sony Corporation | Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device |
US6356403B2 (en) * | 1997-04-25 | 2002-03-12 | Sony Corporation | Rotary magnetic head apparatus having reproduction signal wiring, power-supply wiring and recording signal wiring sections in a rotor and a stator arranged in a predetermined manner |
US6349012B1 (en) * | 1998-02-03 | 2002-02-19 | Hitachi, Ltd. | Magnetic recording and/or reproducing apparatus |
US6476993B1 (en) * | 1999-06-16 | 2002-11-05 | Sony Corporation | Signal processing apparatus and method wherein control signals and power signals are superimposed |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050041318A1 (en) * | 2001-10-09 | 2005-02-24 | Michael Blatchley | Drum electronics control interface and protocol for recording/reproducing apparatus |
US20030197966A1 (en) * | 2002-04-23 | 2003-10-23 | Hitachi, Ltd. | Digital information reproducing apparatus using rotary magnetic heads |
US6867938B2 (en) * | 2002-04-23 | 2005-03-15 | Hitachi, Ltd. | Digital information reproducing apparatus using rotary magnetic heads |
Also Published As
Publication number | Publication date |
---|---|
US20040169952A1 (en) | 2004-09-02 |
US20010048565A1 (en) | 2001-12-06 |
US7023635B2 (en) | 2006-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HITACHI, LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YAMAZAKI, SHIGERU;MASUDA, KEMMEI;TSUCHIYA, TOSHIO;REEL/FRAME:011719/0659 Effective date: 20010214 |
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FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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FPAY | Fee payment |
Year of fee payment: 4 |
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REMI | Maintenance fee reminder mailed | ||
FEPP | Fee payment procedure |
Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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FPAY | Fee payment |
Year of fee payment: 8 |
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AS | Assignment |
Owner name: HITACHI CONSUMER ELECTRONICS CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HITACHI, LTD.;REEL/FRAME:030802/0610 Effective date: 20130607 |
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AS | Assignment |
Owner name: HITACHI MAXELL, LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HITACHI CONSUMER ELECTRONICS CO., LTD.;HITACHI CONSUMER ELECTRONICS CO, LTD.;REEL/FRAME:033694/0745 Effective date: 20140826 |
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REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20160406 |
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AS | Assignment |
Owner name: MAXELL, LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HITACHI MAXELL, LTD.;REEL/FRAME:045142/0208 Effective date: 20171001 |